<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="test"></div>
    <script type="text/javascript" src="../js/react.development.js"></script>
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <script type="text/javascript" src="../js/babel.min.js"></script>
    <script type="text/javascript" src="../js/prop-types.js"></script>
    <script type="text/babel">
        class Demo extends React.Component{
            show=(event)=>{
                console.log(event.target.value);
            }
            render(){
                return (
                    <div>
                        <input type="text" onBlur={this.show} placeholder='失去焦点提示'/>    
                    </div>
                )
            }
        }
        
        ReactDOM.render(<Demo/>,document.getElementById('test'))
    </script>
</body>
</html>